PORTLAND — School officials are seeking public input in their search for principals of Portland High School and Riverton Elementary School.

Parents, students and other community members are invited to fill out a survey, posted on the school district’s website, portlandschools.org, that asks about the skills and qualities to be sought in candidates for these positions.

Portland High Principal Mike Johnson will head Portland Arts and Technology High School next fall. Nancy Kopack has resigned from the Riverton position, effective at the end of June.

Online responses will be accepted through May 6. The positions are being advertised nationally. A search committee, including parents and staff members, will be appointed for each position.